Hello all, Newbie here! Have a 2000 lesabre - has been running great up till about a week ago. Lately it runs great when started cold and run till I shut it down. When it is started 'hot' it cuts out randomly. It will idle rough intermittently, or die completely. When driving at 65 it will drop rpm for a split second and jerk the car.... I started by changing the fuel filter but wondering if it could be the fuel pressure sensor or the fuel pump. Can the fuel pump reduce pressure over time and cause this? or would the fuel pump just quit altogether? Is there a way i could check pressure at the engine? No service engine light on at this point... Any ideas would be very helpful... appreciate any tips in advance!